Posts by Fariha Zahid

Audio activated delay switch is a circuit that can activate a relay switch for a specific time period. For example, when we are listening to…

In this tutorial, we are going to show you how to make a low-noise mic preamp using the NE5534 IC. A microphone preamplifier is a circuit th…

A sound-controlled toggle switch is a circuit that functions according to sound signals such as snapping fingers, a clap, or a whistle. This…

In this project, we are going to show you how to make a High-quality low noise Microphone Preamplifier Circuit using a TL071 IC. This IC has…

In this project, we will make Audio Controlled LED Circuit using a transistor. In an audio-controlled LED circuit, LEDs turn on and off acco…

In this tutorial, we are going to make a Simple LED flasher using a 2N2646 transistor. 2N2646 is a Silicon Unijunction Transistor or UJT. UJ…

In this tutorial, we are going to make a very useful project of a Repeating timer using two 555 timer ICs. Timer circuits are used to provid…

Here is a tutorial of a very interesting and useful DIY electronic project, A simple 24W 12V Audio Amplifier using TDA151BQ IC. Audio amplif…

This is one of the most fun and easy DIY projects in Electronics. We are going to demonstrate a Music Dancing LEDs circuit. It is an ideal p…

In this tutorial, we are making a Remote tester circuit. We all are familiar with our TVs, DVD players, music systems, and many other device…

In this tutorial, we are making a very simple project of an Infrared Detector Circuit that detects infrared light. This circuit is using onl…

In this tutorial, we are going to make an interesting DIY project of the Dark Activated LED Flasher circuit. When there is no light on the s…

In this tutorial, we are going to make two circuits of Light Dark Sensors using CA3140 IC. CA3140 is a BiMOS operational amplifier that has…